Altitude, heart rate variability and aerobic capacities

Détails

ID Serval
serval:BIB_D0479F5DEAAB
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Altitude, heart rate variability and aerobic capacities
Périodique
International Journal of Sports Medicine
Auteur(s)
Schmitt L., Fouillot J.P., Millet G.P., Robach P., Nicolet G., Brugniaux J., Richalet J.P.
ISSN
0172-4622
Statut éditorial
Publié
Date de publication
04/2008
Peer-reviewed
Oui
Volume
29
Numéro
4
Pages
300-306
Langue
anglais
Notes
Publication types: Journal Article ; Randomized Controlled Trial ; Research Support, Non-U.S. Gov't Publication Status: ppublish
Résumé
We analyzed the relationship between aerobic capacities and changes in heart rate variability (HRV) in Nordic-skiers during living high-training low (Hi-Lo). Eleven skiers trained for 18 days at 1200 m, sleeping at 1200 m (LL, n = 5) or in hypoxic rooms (HL, n = 6, 3 x 6 days at altitudes of 2500 - 3000 - 3500 m, 11 h . day (-1)). Measurements were performed before, during and two weeks after Hi-Lo. VO(2max), peak power output were not improved in HL nor in LL, whereas VO(2) and power at the respiratory compensation point (VO(2RCP) and PRCP) increased by 7.5 % and 5.0 % only in HL. Significant changes in HRV occurred only in LL, in the standing position, including a 30 % (p < 0.05) increase in resting heart rate (HR), a 50 % (p < 0.05) decrease in total spectral power (TP) and a 77 % (p < 0.05) decrease in high frequency activity (HF). When all the subjects were pooled, the changes in HRV in the supine position were correlated to the changes in aerobic capacities, i.e., HF, LF and TP were correlated to VO(2RCP) and HR, HF and TP were correlated to PRCP. This study confirms the relationship between HRV and changes in aerobic capacity, therefore highlighting the potential value of HRV for monitoring altitude training adaptations.
Mots-clé
Adult, Altitude, Female, Heart Rate/physiology, Humans, Male, Oxygen Consumption/physiology, Physical Education and Training, Posture/physiology, Skiing/physiology
Pubmed
Web of science
Création de la notice
25/09/2008 8:01
Dernière modification de la notice
20/08/2019 15:50
Données d'usage